Marketable Securities (Tables)

12 Months Ended

Dec. 31, 2016

Investments, Debt and Equity Securities [Abstract]

Investments in Marketable Securities as Available for Sale

Our investments in marketable securities are classified as available for sale and are summarized as follows:


	December 31, 2016
	Amortized Cost		Unrealized Gain (Loss)		Market Value
	(In thousands)
Mortgage-backed securities	$	35	$	—	$	35


	December 31, 2015
	Amortized Cost		Unrealized Gain (Loss)			Market Value
	(In thousands)
Corporate bonds	$	16,480	$	(5,042	)	$	11,438
Mortgage-backed securities		77		3			80

Summary of Proceeds from Sales and Maturities of Marketable Securities and Gross Realized Gains and Losses

Proceeds from maturities and sales of marketable securities and gross realized gains and losses are summarized as follows:


	Year Ended December 31,
	2016		2015		2014
	(In thousands)
Proceeds from maturities	$	—	$	—	$	8,000,000
Proceeds from sales		4,614		51		57

- Definition

Tabular disclosure of available-for-sale securities which includes, but is not limited to, changes in the cost basis and fair value, fair value and gross unrealized gain (loss), fair values by type of security, contractual maturity and classification, amortized cost basis, contracts to acquire securities to be accounted for as available-for-sale, debt maturities, transfers to trading, change in net unrealized holding gain (loss) net of tax, continuous unrealized loss position fair value, aggregate losses qualitative disclosures, other than temporary impairment (OTTI) losses or other disclosures related to available for sale securities.

+ References + Details